Piston used for connection rod-free reciprocating-rotating movement converting device and equipment thereof

Abstract

The invention provides a piston used for a connection rod-free reciprocating-rotating movement converting device. The piston is of a single-action piston; the other end opposite to the head of the piston is provided with an auxiliary guide part; the periphery surface of the auxiliary guide part is matched with an auxiliary runway of an organism; and a fit clearance between the auxiliary guide part and the auxiliary runway is less than that between the crown, after being provided with an oil ring and a gas ring, of the piston and the inner wall of an air cylinder. Preferably, the main body of the auxiliary guide part is a section of solid cylinder. Due to the adoption of the piston, the friction loss of reciprocating movement can be reduced effectively.

Description

technical field [0001] The invention relates to a piston, in particular to a piston used in a connecting-rod-free reciprocating-rotational conversion device; the invention also provides equipment using the above-mentioned piston. Background technique [0002] The common feature of the internal combustion engine adopting the crank circular slider structure or the end shaft-moving shaft device is that no connecting rod is provided. The non-connecting rod reciprocating-rotary motion conversion mechanism mentioned in the present invention specifically refers to the above two forms, Of course, new forms arising with technological development are not excluded. [0003] The above-mentioned non-connecting rod structure can overcome the defects of the traditional crank connecting rod structure internal combustion engine or compressor. The "crank circular slider reciprocating piston internal combustion engine" provided by Chinese patent document CN85100358B, the "crank double circula...

AI Technical Summary

Problems solved by technology

When the reciprocating member in the middle position is a piston, the prior art adopts a structure similar to that of the pistons on both sides, so that, under the same size, it is difficult to make the quality of the piston meet the above-mentioned mass relationship; in order to increase the piston Therefore, the volume of the piston has to be increased, and correspondingly, the size of the reciprocating track on which it is located must also be increased, resulting in an increase in the volume of the cavity of the body, and a significant decrease in its stiffness and strength.

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